I've worked in IT for about two years in a help desk role and have an upcoming interview for a desktop support engineer position. I'm comfortable with most of the responsibilities, but the recruiter said the team lead is especially interested in candidates who understand transferring data between servers. I haven't handled many server-to-server migrations, so I'm trying to figure out which tools, concepts, and safety practices I should study. The environment may be Windows-focused, but I'd also like to understand the Linux equivalents.
4 Answers
The most important part is the process, not just memorizing a command. Confirm the source, destination, data type, permissions, downtime requirements, and whether files are actively changing. Make sure there is a verified backup before starting, test the command against dummy folders, use logging, perform a small trial transfer, and validate file counts, sizes, permissions, and timestamps afterward. Database files and application data may need application-specific backup or migration procedures rather than a normal file copy.
The right tool depends on the operating systems and the type of data. For Linux and other Unix-like systems, learn rsync and the basics of scp over SSH. For Windows-to-Windows transfers, Robocopy is usually the most useful command-line tool. PowerShell remoting can also copy files through sessions when you need filtering or custom logic instead of a straightforward bulk transfer.
For a primarily Windows environment, start with Robocopy. Learn how to copy files between local paths, SMB shares, and administrative shares, while preserving timestamps, permissions, ownership, and other metadata. Pay close attention to options such as /E, /COPY, /SEC, /LOG, and especially /MIR. A mistaken source or destination with mirror mode can delete files, so never use it blindly.
You could also review Distributed File System concepts, but distinguish between DFS Namespaces and DFS Replication. Namespaces provide a consistent path or alias for shares, while replication synchronizes data and has limitations around conflicts, locking, and last-write-wins behavior. For a one-time migration, a carefully tested Robocopy job is often simpler and safer than setting up replication.
It’s also worth understanding SSH keys, permissions, SMB shares, and how authentication works between systems. GUI tools can be convenient, but interviewers will usually care more about whether you understand what is happening underneath.